7.52 avg 20 episodes 7.7 → 7.9 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Air: Part 1 | 7.7 | 1,349 |
| 2 | Air: Part 2 | 7.6 | 790 |
| 3 | Air: Part 3 | 7.3 | 1,155 |
| 4 | Darkness | 7.2 | 1,059 |
| 5 | Light | 7.8 | 1,071 |
| 6 | Water | 7.1 | 977 |
| 7 | Earth | 7.0 | 989 |
| 8 | Time | 8.0 | 1,135 |
| 9 | Life | 6.6 | 970 |
| 10 | Justice | 7.6 | 941 |
| 11 | Space | 7.9 | 940 |
| 12 | Divided | 7.6 | 903 |
| 13 | Faith | 7.4 | 879 |
| 14 | Human | 7.5 | 902 |
| 15 | Lost | 7.7 | 847 |
| 16 | Sabotage | 7.7 | 853 |
| 17 | Pain | 6.8 | 853 |
| 18 | Subversion | 8.0 | 865 |
| 19 | Incursion: Part 1 | 7.9 | 857 |
| 20 | Incursion: Part 2 | 7.9 | 872 |
7.83 avg 20 episodes 7.6 → 8.7 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Intervention | 7.6 | 837 |
| 2 | Aftermath | 7.5 | 778 |
| 3 | Awakening | 8.0 | 778 |
| 4 | Pathogen | 7.3 | 760 |
| 5 | Cloverdale | 6.4 | 834 |
| 6 | Trial and Error | 7.4 | 707 |
| 7 | The Greater Good | 8.1 | 730 |
| 8 | Malice | 8.0 | 716 |
| 9 | Visitation | 7.3 | 689 |
| 10 | Resurgence | 8.0 | 697 |
| 11 | Deliverance | 7.8 | 727 |
| 12 | Twin Destinies | 8.4 | 848 |
| 13 | Alliances | 7.7 | 723 |
| 14 | Hope | 8.0 | 724 |
| 15 | Seizure | 8.0 | 739 |
| 16 | The Hunt | 7.3 | 680 |
| 17 | Common Descent | 8.2 | 774 |
| 18 | Epilogue | 8.5 | 869 |
| 19 | Blockade | 8.4 | 716 |
| 20 | Gauntlet | 8.7 | 1,010 |
